package cn.have.controller;

import com.alibaba.csp.sentinel.annotation.SentinelResource;
import com.alibaba.csp.sentinel.slots.block.BlockException;
import lombok.extern.slf4j.Slf4j;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;

import java.util.concurrent.TimeUnit;

/**
 * @ClassName FlowLimitController
 * @Author 王新
 * @Date: 2022/1/29 22:56 星期六
 * @Version 1.0
 * @Description
 */
@RestController
@Slf4j
public class FlowLimitController {
    @GetMapping("/testA")
    public String testA() {
        try {
            TimeUnit.MILLISECONDS.sleep(300);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        return "------testA";
    }

    @GetMapping("/testB")
    public String testB() {
        log.info(Thread.currentThread().getName() + "\t" + "testB");
        return "------testB";
    }

    @GetMapping("/testD")
    public String testD() {
        //暂停几秒钟线程
        try {
            TimeUnit.SECONDS.sleep(1);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        log.info("testD 测试RT");
        return "------testD";
    }

    @GetMapping("/testE")
    public String testE() {
        log.info("testE 测试异常比例");
        int age = 10/0;
        return "------testE 测试异常比例";
    }

    //热点HotKey测试,附加兜底方法
    @GetMapping("/testHotKey")
    //@SentinelResource(value = "testHotKey")默认会报错，没有兜底方法
    @SentinelResource(value = "testHotKey",blockHandler = "deal_testHotKey")//自定义兜底方法
    public String testHotKey(@RequestParam(value = "p1",required = false) String p1,
                             @RequestParam(value = "p2",required = false) String p2) {
        return "------testHotKey";
    }
    public String deal_testHotKey(String p1, String p2, BlockException exception) {
        return "deal_testHotKey,o(╥﹏╥)o";//sentinel系统默认的提示：Blocked by Sentinel (flow limiting)
    }
}
